Colorado · Area of Critical Environmental Concern
Magpie Gulch ACEC
BLM found a natural system, a wildlife resource and a scenic value here, and its plan calls for special management. BLM's records place 1 oil and gas lease inside the line today, and six grazing allotments cover part of it. It covers 4,711 acres and was designated November 17, 2016, in the 2016 Roan Plateau RMP Amendment. In the plan's name, RMP stands for resource management plan.
One of the 1,120 places the Bureau of Land Management has designated an Area of Critical Environmental Concern. This page shows its line, what BLM found there and what sits inside it.
The line
Ground: USGS The National Map, topographic tiles. Boundaries: BLM's own, read Oct 20, 2026. The lease and 6 grazing allotments below aren't marked.The oil and gas leases
1 active oil and gas lease sits inside the line. 1 of it took effect before the area was designated on November 17, 2016.
- TEP ROCKY MOUNTAIN LLC1lease
Grazing allotments
6 grazing allotments cover part of this line. Their permittees aren't named here yet.
- Webster Park13,584acres
- JQS Com10,593acres
- Hubbard Mesa9,063acres
- Rees7,419acres
- Magpie Cr2,813acres
- Doodlebug964acres
The nearest areas
- Grand Hogback Expansion ACECColorado · 8,801 acres · 1 right of way, 7 grazing allotments covering part of it3miles
- Anvil Points ACECColorado · 6,895 acres · 2 oil and gas leases, 6 rights of way, 7 grazing allotments covering part of it4miles
- Trapper/Northwater Creek ACECColorado · 6,291 acres · 1 right of way, 5 grazing allotments covering part of it5miles
- East Fork Parachute Creek ACECColorado · 7,074 acres · 4 grazing allotments covering part of it5miles
- Grand Hogback ACECColorado · 4,306 acres · 3 rights of way, 3 grazing allotments covering part of it9miles
More from BLM's Colorado office
Every area BLM's Colorado office holdsThe proposed rule
A proposed rule, RIN 1004-AF53, would change how BLM drafts every land use plan, and how it designates ACECs like Magpie Gulch ACEC. The comment window hasn't opened: the proposed rule wasn't in the Federal Register at our last check. The Watch sends one email the day it prints.
The rule's abstract
The purpose of this rulemaking is to establish in regulations an updated process for the approval of the development, revision, amendment, and maintenance of land use plans, as provided for by the Federal Land Policy and Management Act of 1976, for public lands administered by the Bureau of Land Management (BLM). Additionally, this rulemaking will provide clarification of the process the BLM uses for designating Areas of Critical Environmental Concern.Unified Agenda entry for RIN 1004-AF53, Publication ID 2026, reginfo.gov (OMB OIRA), read Oct 18, 2026